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100% Client-Side Processing

GDPR & HIPAA Ready Context

Mask Sensitive Data for AI in Seconds

The fastest, locally-processed PII redaction tool. Protect your privacy before hitting "Send" on ChatGPT.

Masking Utility

PII Selector (6 selected)
Transformation Dictionary (0)

Zero-Server Latency

Your data never leaves your browser. Our JavaScript-based masking ensures total privacy.

Smart Entity Recognition

Detect names, emails, phone numbers, identifiers, and other sensitive entities with adaptable rules built for real-world text.

AI-Ready Context

Preserve sentence meaning while replacing secrets, so models can still reason effectively without direct access to personal data.

Why use Data Masking for AI Prompts?

Sharing sensitive information with LLMs (Large Language Models) can lead to data leaks. DataMasker.io provides enterprise-grade data masking and anonymization techniques to ensure your company's PII stays safe while leveraging AI productivity.

Supported Data Formats

  • CSV Masking: Clean your datasets before analysis.
  • SQL Scrubbing: Remove sensitive identifiers from database logs.
  • JSON Redaction: Sanitize API responses for testing.

FAQ

What is data masking vs anonymization?

While both protect privacy, our tool uses advanced masking to ensure data utility remains high for AI models.

Is it safe to use DataMasker.io?

Yes. Unlike other tools, we do not have a database. Everything happens in your local RAM.